Home / 76,165.56-105,108.30-42,175.80

Finding the Fourth Proportional to 76,165.56, 105,108.30 and 42,175.80

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Solution

The fourth proportional to 76,165.56, 105,108.30 and 42,175.80 is: 58,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,165.56 : 105,108.30 = 42,175.80 : x
  2. Step 2: Convert to fraction form
    76,165.56/105,108.30 = 42,175.80/x
  3. Step 3: Cross multiply
    76,165.56x = 105,108.30 × 42,175.80
  4. Step 4: Simplify right side
    76,165.56x = 4,433,026,639.14
  5. Step 5: Solve for x
    x = 4,433,026,639.14/76,165.56
  6. Step 6: Final answer
    x = 58,202.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.